Blade tip extending structure and method of wind power blade

A wind power blade and blade tip technology, applied in the field of blade tip extension structure, can solve the problems of wasting glass fiber reinforced plastic materials, unable to make full use of blade tip structure design, etc., and achieve the effects of improving reliability, improving reliability and ensuring continuity

Pending Publication Date: 2019-01-01
北京博亦睿科技有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, the blade tip of the original blade is mostly cut off, and the length of the blade is extended by bonding a new prefabricated part with a longer blade tip extension section. The main problem of this method is waste In addition to cutting off part of the FRP material of the blade tip, the structural design of the original blade tip cannot be fully utilized

Method used

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  • Blade tip extending structure and method of wind power blade
  • Blade tip extending structure and method of wind power blade
  • Blade tip extending structure and method of wind power blade

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Embodiment Construction

[0052] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0053] Such as Figure 1-10 As shown, the blade tip extension structure of the wind power blade of the present invention includes a basic blade tip section 100, a blade tip extension transition assembly 200, a prefabricated blade tip extension section 300 and an extended transition zone skin 400, the basic blade tip section 100, the prefabricated blade tip section The tip extensions 300 are sequentially arranged along the blade pitch axis 500 .

[0054] Such as Figure 2-6 As shown, the blade tip extension transition assembly 200 is arranged in the extension transition area of ​​the base blade tip section 100, and includes several sets of shimmy direction support members 210 and at least one set of flapping direction support members 220, wherein severa...

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Abstract

The invention discloses a blade tip extending structure and method of a wind power blade. The space between blade tips of new blades and new blades is filled with blade tip extending transition assemblies for type following, and the continuity of motion of the new blade tips and the new blade tips is guaranteed. Meanwhile, the blade tips are effectively and reliably extended, the structure body ofthe basic blade tips is prevented from being cut off, the rigidity of the basic blade tips is effectively utilized, and economic benefits are increased. In addition, stress transfer of two main loaddirections of waving and shimmying between the new blades and the old blades is fully considered, the torque effect of bending-torsional coupling of the blade tips is considered, it is put forward that a box type beam cap and a web plate are combined and connected, and the reliability of connection is effectively improved. For connection of the new blades and the new blades, the manner of manual pasting of woven glass fabric and vacuum bag pressing is used in combination, use of an adhesive is avoided, and the reliability of connection is further improved.

Description

technical field [0001] The present invention relates to the related field of wind power blades, in particular to a blade tip extension structure and method for lengthening the original wind power blades. Background technique [0002] Wind power blades are the most important components used by wind turbines to capture wind energy. Under the same wind resources and similar aerodynamic performance of the blades, the larger the swept area of ​​the blades, the greater the power generation of the blades. In order to increase the power generation of the blades, various methods for increasing power and efficiency have appeared in the prior art, among which blade tip extension is a very effective one. Compared with other methods, the cost of extending the blade tip is lower and the recovery cycle is shorter, so more and more manufacturers choose to extend the original blade. In the prior art, the blade is lengthened mainly by adding a blade tip extension section to the original blad...

Claims

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Application Information

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IPC IPC(8): F03D1/06
CPCF03D1/0675Y02E10/72
Inventor 张敬德徐宇王学鑫巩硕硕曹艳彬
Owner 北京博亦睿科技有限公司
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